Mug



FIG. 1 is a front perspective view of a mug showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings depict portions of the design that form no part of the claim. 

CLAIM The ornamental design for a mug, as shown and described. 